curl_easy_setopt.3: CURLOPT_POSTFIELDS is the exception

Strings passed to libcurl as 'char *' arguments, are copied by the library;

thus the string storage associated to the pointer argument may be overwritten

after curl_easy_setopt() returns. Exceptions to this rule are described in

the option details below.

after curl_easy_setopt() returns. The only exception to this rule is really

\fICURLOPT_POSTFIELDS\fP, but the alternative that copies the string

\fICURLOPT_COPYPOSTFIELDS\fP has some usage characteristics you need to read

up on.

Before version 7.17.0, strings were not copied. Instead the user was forced

keep them available until libcurl no longer needed them.

.IP CURLOPT_HTTP_VERSION

HTTP version to use. \fICURLOPT_HTTP_VERSION(3)\fP

.IP CURLOPT_IGNORE_CONTENT_LENGTH

Ignore Content-Length. See \fIURLOPT_IGNORE_CONTENT_LENGTH(3)\fP

Ignore Content-Length. See \fICURLOPT_IGNORE_CONTENT_LENGTH(3)\fP

.IP CURLOPT_HTTP_CONTENT_DECODING

Disable Content decoding. See \fICURLOPT_HTTP_CONTENT_DECODING(3)\fP

.IP CURLOPT_HTTP_TRANSFER_DECODING

RTSP stream URI. See \fICURLOPT_RTSP_STREAM_URI(3)\fP

.IP CURLOPT_RTSP_TRANSPORT

RTSP Transport: header. See \fICURLOPT_RTSP_TRANSPORT(3)\fP

.IP CURLOPT_RTSP_HEADER

RTSP custom headers. See \fICURLOPT_RTSP_HEADER(3)\fP

.IP CURLOPT_RTSP_CLIENT_CSEQ

Clent CSEQ number. See \fICURLOPT_RTSP_CLIENT_CSEQ(3)\fP

.IP CURLOPT_RTSP_SERVER_CSEQ